50095. Lines of Words

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

int n;
char ipt[1050624];
char arr[10000000];
char* arr_ptr;

int t;
int word_cnt[1024];

static inline int cnt_words(char* s, int n){
    int ans = 1;
    for(int i = 0; i < n; i++){
        if(s[i] == ' ') ans += 1;
    }
    return ans;
}

static inline char*** get_ptr(){
    char*** first_level = (char***) malloc(sizeof(char**) * n);

    arr_ptr = arr;
    for(int i = 0; i < n; i++){
        fgets(arr_ptr, 1050624, stdin);
        int len_s = strlen(arr_ptr);
        int cnt = cnt_words(arr_ptr, len_s);
        word_cnt[i] = cnt;

        char** second_level = (char**) malloc(sizeof(char*) * cnt);
        first_level[i] = second_level;

        int _cnt = 0;
        char* token = strtok(arr_ptr, " \n");
        while(token != NULL){
            second_level[_cnt++] = token;
            token = strtok(NULL, " \n");
        }
        arr_ptr += len_s;
    }
    return first_level;
}

static inline void solve(char*** ptr){
    int l1, w1, l2, w2;
    scanf("%d %d %d %d", &l1, &w1, &l2, &w2);

    char* temp = ptr[l1][w1];
    ptr[l1][w1] = ptr[l2][w2];
    ptr[l2][w2] = temp;
}

static inline void print_word(char* p){
    while(*p != '\0') putchar(*p), p++;
}

static inline void print(char*** ptr){
    for(int i = 0; i < n; i++){
        for(int j = 0; j < word_cnt[i]; j++){
            print_word(ptr[i][j]);
            if(j != word_cnt[i] - 1) putchar(' ');
            else putchar('\n');
        }
    }
}


int main(){
    scanf("%d", &n); getchar();
    char*** ptr = get_ptr();
    // print(ptr);

    scanf("%d", &t);
    while(t--) solve(ptr);
    print(ptr);
}